DaVinci Resolve control surface screen with yellow tinged backlight

I'm wondering if anyone else is experiencing yellow tinged backlight on their DaVinci control surfaces screens.

Mine has the left screen on the center panel with this problem and, despite the fact that I've had to send the panel back to Blackmagic UK several times to fix other issues with the trackballs, the screen has never been fixed. So I'm starting to believe that Blackmagic regards this as normal. The screen has had this issue since new.